<template>
    <div class="main">
        <a-form
                id="formLogin"
                class="user-layout-login"
                ref="formLogin"
                :form="form"
                @submit="handleSubmit"
        >
            <a-tabs
                    :activeKey="customActiveKey"
                    :tabBarStyle="{ textAlign: 'center', borderBottom: 'unset' }"
                    @change="handleTabClick"
            >
                <a-tab-pane key="tab1" tab="账号密码登录">
                    <a-form-item>
                        <a-input
                                size="large"
                                type="text"
                                placeholder="输入账户"
                                v-decorator="[
                'username',
                {initialValue: 'admin',rules: [{ required: true, message: '请输入帐户名或邮箱地址' }, { validator: handleUsernameOrEmail }], validateTrigger: 'change'}
              ]"
                        >
                            <a-icon slot="prefix" type="user" :style="{ color: 'rgba(0,0,0,.25)' }"/>
                        </a-input>
                    </a-form-item>

                    <a-form-item>
                        <a-input
                                size="large"
                                type="password"
                                autocomplete="false"
                                placeholder="输入密码"
                                v-decorator="[
                'password',
                {initialValue: 'admin',rules: [{ required: true, message: '请输入密码' }], validateTrigger: 'blur'}
              ]"
                        >
                            <a-icon slot="prefix" type="lock" :style="{ color: 'rgba(0,0,0,.25)' }"/>
                        </a-input>
                    </a-form-item>
                    <a-form-item>
                        <a-input-group size="large">
                            <a-col :span="18">
                                <a-input placeholder="验证码" v-decorator="[
                'captcha',
                {rules: [{ required: true, message: '请输入验证码' }], validateTrigger: 'blur'}
              ]" />
                            </a-col>
                            <a-col :span="6">
                                <img :src="captcha" alt="验证码" style="width: 100%;height: 40px;cursor: pointer" @click="changeCaptcha">
                            </a-col>
                        </a-input-group>
                    </a-form-item>
                </a-tab-pane>
                <a-tab-pane key="tab2" tab="手机号登录">
                    <a-form-item>
                        <a-input size="large" type="text" placeholder="手机号"
                                 v-decorator="['mobile', {rules: [{ required: true, pattern: /^1[34578]\d{9}$/, message: '请输入正确的手机号' }], validateTrigger: 'change'}]">
                            <a-icon slot="prefix" type="mobile" :style="{ color: 'rgba(0,0,0,.25)' }"/>
                        </a-input>
                    </a-form-item>

                    <a-row :gutter="16">
                        <a-col class="gutter-row" :span="16">
                            <a-form-item>
                                <a-input size="large" type="text" placeholder="验证码"
                                         v-decorator="['captcha', {rules: [{ required: true, message: '请输入验证码' }], validateTrigger: 'blur'}]">
                                    <a-icon slot="prefix" type="mail" :style="{ color: 'rgba(0,0,0,.25)' }"/>
                                </a-input>
                            </a-form-item>
                        </a-col>
                        <a-col class="gutter-row" :span="8">
                            <a-button
                                    class="getCaptcha"
                                    tabindex="-1"
                                    :disabled="state.smsSendBtn"
                                    @click.stop.prevent="getCaptcha"
                                    v-text="!state.smsSendBtn && '获取验证码' || (state.time+' s')"
                            ></a-button>
                        </a-col>
                    </a-row>
                </a-tab-pane>
            </a-tabs>

            <a-form-item>
                <a-checkbox v-decorator="['rememberMe']" style="float: left">自动登录</a-checkbox>
                <router-link
                        :to="{ name: 'recover', params: { user: 'aaa'} }"
                        class="forge-password"
                        style="float: right;"
                >忘记密码
                </router-link>
            </a-form-item>

            <a-form-item style="margin-top:24px">
                <a-button
                        size="large"
                        type="primary"
                        htmlType="submit"
                        class="login-button"
                        :loading="state.loginBtn"
                        :disabled="state.loginBtn"
                >确定
                </a-button>
            </a-form-item>

            <div class="user-login-other">
                <span>其他登录方式</span>
                <a>
                    <a-icon class="item-icon" type="alipay-circle"></a-icon>
                </a>
                <a>
                    <a-icon class="item-icon" type="taobao-circle"></a-icon>
                </a>
                <a>
                    <a-icon class="item-icon" type="weibo-circle"></a-icon>
                </a>
                <router-link class="register" :to="{ name: 'register' }">注册账户</router-link>
            </div>
        </a-form>

        <two-step-captcha
                v-if="requiredTwoStepCaptcha"
                :visible="stepCaptchaVisible"
                @success="stepCaptchaSuccess"
                @cancel="stepCaptchaCancel"
        ></two-step-captcha>
    </div>
</template>

<script>
    import {mapGetters } from 'vuex'
    export default {
        components: {
        },
        data() {
            return {
                customActiveKey: 'tab1',
                captcha:this.api.captcha,
                loginBtn: false,
                // login type: 0 email, 1 username, 2 telephone
                loginType: 0,
                requiredTwoStepCaptcha: false,
                stepCaptchaVisible: false,
                form: this.$form.createForm(this),
                state: {
                    time: 60,
                    loginBtn: false,
                    // login type: 0 email, 1 username, 2 telephone
                    loginType: 0,
                    smsSendBtn: false
                }
            }
        },
        methods: {
            ...mapGetters(['getUserGoRouter']),
            handleUsernameOrEmail(rule, value, callback) {
                const { state } = this
                const regex = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+((\.[a-zA-Z0-9_-]{2,3}){1,2})$/
                if (regex.test(value)) {
                    state.loginType = 0
                } else {
                    state.loginType = 1
                }
                callback()
            },
            changeCaptcha(){
                this.captcha = this.api.captcha + "?"+new Date().getTime()
            },
            handleTabClick(key){
                this.customActiveKey = key
            },
            handleSubmit(e){
                e.preventDefault();
                const {form: { validateFields },customActiveKey,state} = this
                state.loginBtn = true
                const validateFieldsKey = customActiveKey === 'tab1' ? ['username', 'password','captcha'] : ['mobile', 'captcha']
                validateFields(validateFieldsKey, { force: true }, (err, values) => {
                    if(!err){
                        this.$http.post(this.api.login,{
                            username:values.username,
                            password:values.password,
                            captcha:values.captcha
                        }).then(res => {
                            if(res.code == 0){
                                this.$router.push({ path: '/' })
                                // 延迟 1 秒显示欢迎信息
                                setTimeout(() => {
                                    this.$notification.success({
                                        message: '欢迎您 '+values.username,
                                        description: `欢迎回来`
                                    })
                                }, 1000)
                            }else{
                                this.$message.error(res.msg)
                                this.changeCaptcha()
                            }
                        }).catch(err => {
                            console.log(err)
                        }).finally(() => {
                            state.loginBtn = false
                        })
                    }else{
                        state.loginBtn = false
                    }
                })
            },
            getCaptcha(e) {

            },
            stepCaptchaSuccess() {

            },
            stepCaptchaCancel() {

            },
            loginSuccess(res) {

            },
            requestFailed(err) {

            }
        }
    }
</script>

<style lang="less" scoped>
    .user-layout-login {
        label {
            font-size: 14px;
        }

        .getCaptcha {
            display: block;
            width: 100%;
            height: 40px;
        }

        .forge-password {
            font-size: 14px;
        }

        button.login-button {
            padding: 0 15px;
            font-size: 16px;
            height: 40px;
            width: 100%;
        }

        .user-login-other {
            text-align: left;
            margin-top: 24px;
            line-height: 22px;

            .item-icon {
                font-size: 24px;
                color: rgba(0, 0, 0, 0.2);
                margin-left: 16px;
                vertical-align: middle;
                cursor: pointer;
                transition: color 0.3s;

                &:hover {
                    color: #1890ff;
                }
            }

            .register {
                float: right;
            }
        }
    }
</style>
